GlueX Start Counter Meeting, September 22, 2011

10 am EDT
JLab: CEBAF Center, Room F326/7

Agenda

1. Announcements
2. Review minutes from previous meeting: all
3. Prototype Report
4. MOU status
5. Simulation Status [1]

Communication Information

Video Conferencing

• ESNet: 8542553
• EVO:
  • Meeting URL: http://evo.caltech.edu/evoNext/koala.jnlp?meeting=292I2iMeMB9M9nDD9aD9
  • Phone Bridge ID: 10 1295

Slides

Talks can be deposited in the directory /group/halld/www/halldweb1/html/talks/2011-3Q on the JLab CUE. This directory is accessible from the web at https://halldweb1.jlab.org/talks/2011-3Q/ . You have to be a member of the "halld" Unix group to do this.

Minutes

Start Counter Meeting Minutes

lei, eric, puneet

tim, chuck, beni, eugene, mark

looking at new scint from eljen, a factor of 4 worse attenuation length poor surface quality w/ w/o vm2000 light output unchanged in nose time resolution gets better closer to upstream end sipm range 230 ps to about 600 ps no light guide 13x13 mm, 2mmx3mm not touching

mechanical design hand-layout of putting sipm inside bore of CDC we can fit need 24 3 inches: 24 10+ inches: 28 10+ inches: whatever

scintillating fibers

4cm

200 kHz/paddle at high luminosity

simulation

problem with placement of SiPM